Floor cutting - isn't alu supposed to be soft?!

[twinturbo]

Originally Posted by TheArf

Yeah but that just means your to tight to buy a new one ha ha,
its sounding like trigger and his brush that he had for 17 years

He's had the same wood blade for 2 years, and it's blunt but using friction alone he has melted throug 50cm of Ally it's taken the 2 years to go 50cm though

[baz-r]

the problem is the blade is getting to hot and the alloy swarf is welding its self to the blade clogging it and making it hotter. useing somthing to cool and lube it will stop this.
cutting fluid is best i find and makes your drill bits last forever. and broaching oil also works well but most of you will not have tease to hand.

wd40 like sprays will work but need regular application and burns off quick and light oil or thin engine oils will work better.

i dont recomend cutting discs for alloy wrong ones over heat and shatter and theres the fine dust thats not good for you

[jps]

thanks for the advice chaps, would never have thought of using wd40, the floor is now fully cut out and it was like going through butter with the jigsaw once I heeded your advice! Thanks again!!